{
  "manageEntity": {
    "action": "Save",
    "entityId": "1163086116",
    "entityType": "Track",
    "nonce": "1790477224384822843",
    "signature": "0x96566d27a0f5128eb1504579dd47e26a8abd06802901e9f5df4ebe515b38f3aa5490f521600297aa5bbe92ab1dbd0077af8553cb967f7656d2078e1b23a44e611c",
    "signer": "0x1007e09532BE90331E035838A9E2E0700bB9741a",
    "userId": "329513359"
  }
}